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南水北调中线工程上的大量交叉建筑物存在桩土非协调变形等工程危害，影响渠道的防渗效果。利用应变电测技术测量模型试验中桩体的受力状态，以此研究桩与渠坡土体的相互作用机理，取得良好的研究效果。 相似文献
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嵌岩桩非线性动力学特性 总被引：1，自引：0，他引：1
The nonlinear dynamic characteristics of a pile embedded in a rock were investigated. Suppose that both the materials of the pile and the soil around the pile obey nonlinear elastic and linear viscoelastic constitutive relations. The nonlinear partial differential equation governing the dynamic characteristics of the pile was first derived. The Galerkin method was used to simplify the equation and to obtain a nonlinear ordinary differential equation. The methods in nonlinear dynamics were employed to solve the simplified dynamical system, and the time-path curves, phase-trajectory diagrams, power spectrum, Poincare sections and bifurcation and chaos diagrams of the motion of the pile were obtained. The effects of parameters on the dynamic characteristics of the system were also considered in detail. 相似文献
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